摘要
以120 km/h速度等级8轴货运电力机车为研究对象,在大秦线测试了其牵引2万t重载组合列车时的车钩纵向载荷、牵引装置纵向载荷、主要承载件动应力的时间历程,根据雨流计数法获得了相应的载荷谱(应力谱),可用于类似结构大功率机车车体、车钩及牵引装置的结构可靠性设计,并可用于作为相关部件的可靠性试验评定。
The eight-axle electric freight locomotive running at 120 km/h was tested on Datong-Qinhuangdao line to obtain the longitudinal load of coupler and traction equipments as well as the dynamic stress of major load-bearing equipments while hauling the 20 kt heavy combined trains.The corresponding load spectrum（stress spectrum） is obtained by using the rain-flow counting method,which could serve as reference for reliable design of car body,coupler and the traction equipment of similar high power locomotives and also reliablity evaluation for relevant components.
出处
《铁道机车车辆》
北大核心
2010年第5期1-3,共3页
Railway Locomotive & Car
关键词
重载机车
应力谱
载荷谱
heavy haul locomotive
stress spectrum
load spectrum
